获取图片指定颜色矩形区域代码,CSharp代码库,德仔网

代码语言

代码分类

【CSharp】获取图片指定颜色矩形区域

作者:Dezai.CN / 发布于2011/6/27/ 792

<div>/// <summary>
/// 获取图片指定颜色矩形区域
/// </summary>
/// <param name="sourceImage">图片</param>
/// <param name="targetColor">指定颜色</param>
/// <returns>矩形区域</returns>
private Rectangle GetColorRect(Bitmap sourceImage, Color targetColor)
{
Rectangle resultRect = new Rectangle(0, 0, 0, 0);
int left;
int top;
int right;
int bottom;
if (sourceImage != null && sourceImage.Width > 0 && sourceImage.Height > 0)
{
left = sourceImage.Width;
top = sourceImage.Height;
right = 0;
bottom = 0;

Color color = Color.Black;
for (int width = 0; width < sourceImage.Width; width++)
{
for (int height = 0; height < sourceImage.Height; height++)
{
color = sourceImage.GetPixel(width, height);
if (color.A == targetColor.A && 
color.B==targetColor.B &&
color.G==targetColor.G && 
color.R==targetColor.R)
{
if (width < left)
{
left = width;
}
if (height < top)
{
top = height;
}
if (width > right)
{
right = width;
}
if (height > bottom)
{
bottom = height;
}
}
}
}
resultRect = new Rectangle(left, top, right - left, bottom - top);
}

return resultRect;
}

试试其它关键字

同语言下

可能有用的

Dezai.CN贡献的其它代码(4037)